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Dual Bond Enhanced Multidimensional Constructed Composite Silicon Anode for High-Performance Lithium Ion Batteries
Liu, Shiqi; Zhang, Xu; Yan, Pengfei; Cheng, Renfei; Tang, Yushu; Cui, Min; Wang, Boya; Zhang, Liqiang; Wang, Xiaohui; Jiang, Yuyuan; Wang, Lin; Yu, Haijun
2019-08-01
Source PublicationACS NANO
ISSN1936-0851
Volume13Issue:8Pages:8854-8864
AbstractThe development of silicon-based anode materials is important for improving the energy density of current lithium ion batteries. However, there are still strong demands for these materials with better cycle stability and higher reversible capacity. Here, a kind of dual bond restricted MXene-Si-CNT composite anode materials with enhanced electrochemical performance is reported. These dual bonds have been clearly revealed by an X-ray photoelectron spectroscopy technique and also proven by theoretical calculations with spontaneous reaction energy values (-0.190 and -0.429 eV/atom for Ti-Si and C-Si bonds, respectively). The cycle stability of the composites, prepared by a facile ball-milling synthetic method, can obviously be improved because of the existence of these dual bonds and the multidimensional constructed architecture. The MXene-Si-CNT composite with 60 wt % silicon possesses the best overall performance, with similar to 80% capacity retention after 200 cycles, and achieves 841 mAh g(-1) at 2 A g(-1). This approach demonstrates a promising strategy to exploit high-performance anode materials and lessens the immanent negative effect of silicon-based materials. Furthermore, it is significant to extend this method to other anode materials with serious volumetric change problems during the cycling process.
Keyworddual bonds MXene-Si-CNT composite anode binding energy lithium ion batteries
Indexed BySCI
Language英语
WOS IDWOS:000484077800035
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80852
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Liu, Shiqi,Zhang, Xu,Yan, Pengfei,et al. Dual Bond Enhanced Multidimensional Constructed Composite Silicon Anode for High-Performance Lithium Ion Batteries[J]. ACS NANO,2019,13(8):8854-8864.
APA Liu, Shiqi.,Zhang, Xu.,Yan, Pengfei.,Cheng, Renfei.,Tang, Yushu.,...&Yu, Haijun.(2019).Dual Bond Enhanced Multidimensional Constructed Composite Silicon Anode for High-Performance Lithium Ion Batteries.ACS NANO,13(8),8854-8864.
MLA Liu, Shiqi,et al."Dual Bond Enhanced Multidimensional Constructed Composite Silicon Anode for High-Performance Lithium Ion Batteries".ACS NANO 13.8(2019):8854-8864.
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